MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8bb5f41255baed2d4c5425520cf1115f35efce7e5a1042e23da4a53306d86ae8. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


AgentTesla


Vendor detections: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8bb5f41255baed2d4c5425520cf1115f35efce7e5a1042e23da4a53306d86ae8
SHA3-384 hash: 641a1c26876b1e58e69233f44a0e6185da53c3775ca62c114c65da8fd335c34b11d9ed38876b278fd7f743f1f679bcae
SHA1 hash: 8e8af96e1772c6e044d8ffb1cca9315b2299b4c0
MD5 hash: 28ce0e3ab7e9f14bbadcc55a3e831182
humanhash: winter-tennis-magnesium-georgia
File name:TOYO_ENG.EXE
Download: download sample
Signature AgentTesla
Create hunting rule
File size:676'864 bytes
First seen:2020-06-25 09:20:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:hPr/HSzAoOUjKnVADyw4x9vbqjwrOSGPrfe:dfSOUeWDf4zqUrOSGTe
Threatray 10'684 similar samples on MalwareBazaar
TLSH 24E4CF90D2884ED9EC2D03B6D4726C115377BE5AA076DB2E5A9EB4B42EB33C31027D17
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: server.radmadengines.com
Sending IP: 162.241.204.155
From: Toyo Engineering & Construction Sdn. Bhd <nmw_ikram@toyo-eng.com>
Subject: [PR259 BIO-MEG] AYBF001 Hot Oil Heater / RFQ / Toyo Engineering & Construction Sdn. Bhd
Attachment: TOYO Engineering EPCC for BIO-MEG Project AYBF001 Hot Oil Heater 25062020_scanned from a xerox devic (contains "TOYO_ENG.EXE")

AgentTesla SMTP exfil server:
smtp.masterindo.net:5687

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/14102/
Detection(s):
SecuriteInfo.com.Generic.mg.181bf63f744587d9.5579.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun with Startup directory
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8bb5f41255baed2d4c5425520cf1115f35efce7e5a1042e23da4a53306d86ae8/
Gathering data
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ro27iesvxlws2tcuevjaz4irl4267tt6liiefyr5usstgbwynlua._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 10'674 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200625-ce6ct8qtzj/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

iso c5adc91c434a9553dc5f68fb2e4ed4cb36a0f79105efebcd09c65e0c825e1a6d

AgentTesla

Executable exe 8bb5f41255baed2d4c5425520cf1115f35efce7e5a1042e23da4a53306d86ae8

(this sample)

  
Dropped by
MD5 410fbeefd4304ba20224677e70c4eced
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/14102/
  
Dropped by
SHA256 c5adc91c434a9553dc5f68fb2e4ed4cb36a0f79105efebcd09c65e0c825e1a6d

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